Sistem Telekomunikasi Modul 6.3

Fiber Access Network • Untuk memenuhi kebutuhan bandwidth yang terus meningkat untuk berbagai layanan bagi pelanggan diperlukan penyediaan “new high-bandwidth access services”. • Optical fiber access menyediakan bandwidth sampai beberapa gigabits per second (Gbps)—dan mungkin akan terus meningkat sejalan dengan kemajuan teknologi. • Konfigurasi jaringan – All optical fiber access network • Point to point (PTP) network • Passive/active optical network (PON/AON)

– FTTx • Struktur jaringan berdasarkan penentuan titik konversi sinyal (perubahan dari optik ke twisted pair atau coaxial cable) SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Point To Point Network Central Office / Head End

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Passive/Active Optical Network Central Office / Head End

PS/AS

PS/AS

PS = Passive Splitter AS = Active Splitter

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Passive Optical Network (PON)

• Does not contain any electronics between the central office/headend switch and the customer-premises equipment • The entire down-stream bandwidth is transmitted to the power splitter and delivered to each subscriber • The customer-premises equipment contains optical transceivers that switch on and off during the allocated time slots and select their content; this prevents them from accessing content not intended for them • Each splitter typically splits a fiber into 16, 32, or 64 fibers, depending on the manufacturer, and several splitters can be aggregated in a single cabinet SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Active Optical Network (AON) OLT

Switch

• All subscriber content is transmitted to the aggregation switch and then distributed to the appropriate subscribers only • At the switch, all content is converted from an optical signal to an electrical signal, separated from other content, and converted again to an optical signal and delivered appropriately over separate fibers to each destination • Active networks have additional intelligence located closer to the subscriber that can reduce latency, flexibly add bandwidth, isolate faults, switch, schedule and queue traffic— and maximize bandwidth utilization between the switch aggregator and central office SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Fiber To The – x (FTTx) • FTTx merupakan berbagai alternatif struktur jaringan berdasarkan letak titik konversi sinyal optik (TKO) • Struktur jaringan – Fiber To The Building (FTTB) – Fiber To The Curb (FTTC) – Fiber To The Home (FTTH)

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Fiber To The Building (FTTB)

Distribution Feeder

Existing Indoor Copper Cable

Central Office Optical Fiber Cable

Aplikasi :

• Pelanggan bisnis di gedung bertingkat • Pelanggan di apartemen Distance 0

Remote Terminal Up to 20 km

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Fiber To The Curb (FTTC) Copper cable Distribution Drop home run

Feeder

Central Office Optical Fiber Cable

Aplikasi : Pelanggan yang letaknya berkumpul di satu area terbatas

Network Access Point

Distance 0

Up to 20 km SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Fiber To The Home (FTTH)

Distribution Feeder

Central Office Optical Fiber Cable

Aplikasi : All optical fiber access network

Network access point Distance

0

Up to 20 km SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Hybrid Fiber Coaxial (HFC) Coaxial cable

Central Office / Head End

Hybrid Node

Optical Fibers Coaxial cable

Hybrid Node

•

HFC adalah jaringan akses yang mengkombinasikan coaxial dan fiber optik • Hybrid node : mengkonversi sinyal optik menjadi sinyal elektris untuk ditransmisikan ke user terminal melalui kabel coaxial

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Konfigurasi HFC

Core network

Access network Optical fiber cable

Coaxial cable

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Power Line Communication (PLC) •

Powerline Communication (PLC), also known as Broadband Over Powerline (BPL) is a technique for sending high speed data through existing powerline as transmission medium.

•

PLC creates a high speed data communications network using the medium and low voltage electric distribution grids which connects consumers to the Internet through any electric socket in the consumers home.

•

Powerline is the worlds largest existing wired infrastructure.

PLC Technology

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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PLC Applications Broadband Services • • • • • • •

High Speed Internet Access Voice Over IP Video Streaming Home Networking Home Automation Home Security Systems Telemedicine Applications Utility Applications

• • • • •

Automatic Meter Reading Internal Communications Demand Side Management Load monitoring Security Monitoring

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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